l have a 1997 Yamaha Warrior 350. as soon as l turn the gas on from the tank fuel starts leaking out of the overflow tube for some reason. what would cause this. l think that my float is fine. l took it all apart and the float works fine. so what else would cause this?

flux capacitor!

The floats stuck. smack the carb bowl (gently) with something like a screwdriver handle. Sometimes that will work. Otherwise you gotta pull the carb bowl off and drop the float and spray out the float needle and seat with some carb cleaner.

l was thinking sticky float, but you said no. have you checked to see if your jets are clear, everything that fuel flows through?

take float apart.take off any plastic parts and give a soak down with carb cleaner. if that dont work give it an acid bath. good luck finding someone with one though